text: import itertools
  
  import numpy as np
  import pandas as pd
  
  NUMPY_ENCODINGS = [
      (np.integer, int),
      (np.floating, float),
      (np.ndarray, lambda obj: obj.tolist()),
  ]
  
  PANDAS_ENCODINGS = [
      (pd.core.indexes.base.Index, lambda obj: obj.tolist())
  ]
  
  ENCODERS = NUMPY_ENCODINGS + PANDAS_ENCODINGS
  